Repeatability and learning effect in the 6MWT in preoperative cancer patients undergoing a prehabilitation program. - Sebio-Garcia, Raquel; Dana, Fernando; Gimeno-Santos, Elena; López-Baamonde, Manuel; Ubré, Marta; Montané-Muntané, Mar; Risco, Raquel; Messagi-Sartor, Monique; Roca, Josep; Martínez-Palli, Graciela (Supportive Care in Cancer, 2022)